60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
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#ifndef MICROBIT_EVENT_SERVICE_H
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#define MICROBIT_EVENT_SERVICE_H
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#include "MicroBit.h"
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// UUIDs for our service and characteristics
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extern const uint8_t MicroBitEventServiceUUID[];
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extern const uint8_t MicroBitEventServiceMicroBitEventCharacteristicUUID[];
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extern const uint8_t MicroBitEventServiceClientEventCharacteristicUUID[];
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struct EventServiceEvent
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{
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uint16_t type;
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uint16_t reason;
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};
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/**
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* Class definition for a MicroBit BLE Event Service.
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* Provides a _ble gateway onto the MicroBit Message Bus.
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*/
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class MicroBitEventService
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{
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public:
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/**
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* Constructor.
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* Create a representation of the EventService
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* @param BLE The instance of a BLE device that we're running on.
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*/
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MicroBitEventService(BLEDevice &_ble);
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/**
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* Callback. Invoked when any of our attributes are written via BLE.
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*/
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void onDataWritten(const GattWriteCallbackParams *params);
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/**
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* Callback. Invoked when any events are sent on the microBit message bus.
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*/
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void onMicroBitEvent(MicroBitEvent evt);
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private:
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// Bluetooth stack we're running on.
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BLEDevice &ble;
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// memory for our 8 bit control characteristics.
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EventServiceEvent clientEventBuffer;
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EventServiceEvent microBitEventBuffer;
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// BLE GATT Characteristics for sending and receiving events to an attached device
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GattCharacteristic microBitEventCharacteristic;
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GattCharacteristic clientEventCharacteristic;
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};
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#endif
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